Un enregistrement des flux sédimentaires sous glaciaires dans le lac du front de la mer de glace (Chamonix-France) : Bilans perspectives

Hydrostratigraphic characterization of glaciofluvial deposits underlying an infiltration basin using ground penetrating radar.

14 pages; International audience; An understanding of the heterogeneity of quaternary gravelly deposits is required to predict flow and contaminant transfer through these formations. In such deposits, preferential flow paths can lead to contamination at depths greater than predicted under the assumption of a homogeneous medium. The difficulties in characterizing their complex structure with conventional methods represent an obstacle for this prediction. In this study, we developed an approach relying on the use of ground penetrating radar (GPR) for the detection of sedimentary depositional units. A genetic interpretation of the radar stratigraphy allowed us to construct a distribution model…